Bill Gates thinks education and immigration reform are the top two issues the nation faces, calling the immigration policies in place now an “injustice.”

The Microsoft co-founder who is currently its Technology Adviser after stepping down as the company’s chairman last week was asked Monday during a Reddit Ask Me Anything what the next domestic issue the country needs to address “besides improving the education system.”

“Education would be the top issue since it is key to individual opportunity and to the country as a whole and we are not doing as well as other countries,” Gates said. “After that I would say immigration since the injustice of the current system is incredible.”

Gates has been vocal in his support of immigration reform and recently joined former Washington Post CEO Don Graham as one of the financiers — as the Bill & Melinda Gates Foundation — in a $25 million college scholarship fund for undocumented youth, which was announced last week. He has also met with lawmakers on both sides of the aisle on Capitol Hill to discuss the issue.